#ifndef HEADER_CONF_H
#define HEADER_CONF_H

#include "bio.h"
#include "lhash.h"
#include "stack.h"
#include "safestack.h"
#include "e_os2.h"

#include "ossl_typ.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
	char *section;
	char *name;
	char *value;
} CONF_VALUE;

DECLARE_STACK_OF(CONF_VALUE)
DECLARE_STACK_OF(CONF_MODULE)
DECLARE_STACK_OF(CONF_IMODULE)

struct conf_st;
struct conf_method_st;
typedef struct conf_method_st CONF_METHOD;

struct conf_method_st {
	const char *name;
	CONF *(*create)(CONF_METHOD *meth);
	int (*init)(CONF *conf);
	int (*destroy)(CONF *conf);
	int (*destroy_data)(CONF *conf);
	int (*load_bio)(CONF *conf, BIO *bp, long *eline);
	int (*dump)(const CONF *conf, BIO *bp);
	int (*is_number)(const CONF *conf, char c);
	int (*to_int)(const CONF *conf, char c);
	int (*load)(CONF *conf, const char *name, long *eline);
};

/* Module definitions */

typedef struct conf_imodule_st CONF_IMODULE;
typedef struct conf_module_st CONF_MODULE;

/* DSO module function typedefs */
typedef int conf_init_func(CONF_IMODULE *md, const CONF *cnf);
typedef void conf_finish_func(CONF_IMODULE *md);

#define CONF_MFLAGS_IGNORE_ERRORS 0x1
#define CONF_MFLAGS_IGNORE_RETURN_CODES 0x2
#define CONF_MFLAGS_SILENT 0x4
#define CONF_MFLAGS_NO_DSO 0x8
#define CONF_MFLAGS_IGNORE_MISSING_FILE 0x10
#define CONF_MFLAGS_DEFAULT_SECTION 0x20

int CONF_set_default_method(CONF_METHOD *meth);
void CONF_set_nconf(CONF *conf, LHASH *hash);
LHASH *CONF_load(LHASH *conf, const char *file, long *eline);
#ifdef OPENSSL_NO_FP_API
LHASH *CONF_load_fp(LHASH *conf, FILE *fp, long *eline);
#endif
LHASH *CONF_load_bio(LHASH *conf, BIO *bp, long *eline);
STACK_OF(CONF_VALUE) * CONF_get_section(LHASH *conf, const char *section);
char *CONF_get_string(LHASH *conf, const char *group, const char *name);
long CONF_get_number(LHASH *conf, const char *group, const char *name);
void CONF_free(LHASH *conf);
//int CONF_dump_fp(LHASH *conf, FILE *out);
int CONF_dump_bio(LHASH *conf, BIO *out);

void OPENSSL_config(const char *config_name);
void OPENSSL_no_config(void);

/* New conf code.  The semantics are different from the functions above.
   If that wasn't the case, the above functions would have been replaced */

struct conf_st {
	CONF_METHOD *meth;
	void *meth_data;
	LHASH *data;
};

CONF *NCONF_new(CONF_METHOD *meth);
CONF_METHOD *NCONF_default(void);
CONF_METHOD *NCONF_WIN32(void);
#if 0 /* Just to give you an idea of what I have in mind */
CONF_METHOD *NCONF_XML(void);
#endif
void NCONF_free(CONF *conf);
void NCONF_free_data(CONF *conf);

int NCONF_load(CONF *conf, const char *file, long *eline);
#ifdef OPENSSL_NO_FP_API
int NCONF_load_fp(CONF *conf, FILE *fp, long *eline);
#endif
int NCONF_load_bio(CONF *conf, BIO *bp, long *eline);
STACK_OF(CONF_VALUE) * NCONF_get_section(const CONF *conf, const char *section);
char *NCONF_get_string(const CONF *conf, const char *group, const char *name);
int NCONF_get_number_e(const CONF *conf, const char *group, const char *name,
		       long *result);
//int NCONF_dump_fp(const CONF *conf, FILE *out);
int NCONF_dump_bio(const CONF *conf, BIO *out);

#if 0 /* The following function has no error checking,
	 and should therefore be avoided */
long NCONF_get_number(CONF *conf,char *group,char *name);
#else
#define NCONF_get_number(c, g, n, r) NCONF_get_number_e(c, g, n, r)
#endif

/* Module functions */

int CONF_modules_load(const CONF *cnf, const char *appname,
		      unsigned long flags);
int CONF_modules_load_file(const char *filename, const char *appname,
			   unsigned long flags);
void CONF_modules_unload(int all);
void CONF_modules_finish(void);
void CONF_modules_free(void);
int CONF_module_add(const char *name, conf_init_func *ifunc,
		    conf_finish_func *ffunc);

const char *CONF_imodule_get_name(const CONF_IMODULE *md);
const char *CONF_imodule_get_value(const CONF_IMODULE *md);
void *CONF_imodule_get_usr_data(const CONF_IMODULE *md);
void CONF_imodule_set_usr_data(CONF_IMODULE *md, void *usr_data);
CONF_MODULE *CONF_imodule_get_module(const CONF_IMODULE *md);
unsigned long CONF_imodule_get_flags(const CONF_IMODULE *md);
void CONF_imodule_set_flags(CONF_IMODULE *md, unsigned long flags);
void *CONF_module_get_usr_data(CONF_MODULE *pmod);
void CONF_module_set_usr_data(CONF_MODULE *pmod, void *usr_data);

char *CONF_get1_default_config_file(void);

int CONF_parse_list(const char *list, int sep, int nospc,
		    int (*list_cb)(const char *elem, int len, void *usr),
		    void *arg);

void OPENSSL_load_builtin_modules(void);

/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_CONF_strings(void);

/* Error codes for the CONF functions. */

/* Function codes. */
#define CONF_F_CONF_DUMP_FP 104
#define CONF_F_CONF_LOAD 100
#define CONF_F_CONF_LOAD_BIO 102
#define CONF_F_CONF_LOAD_FP 103
#define CONF_F_CONF_MODULES_LOAD 116
#define CONF_F_DEF_LOAD 120
#define CONF_F_DEF_LOAD_BIO 121
#define CONF_F_MODULE_INIT 115
#define CONF_F_MODULE_LOAD_DSO 117
#define CONF_F_MODULE_RUN 118
#define CONF_F_NCONF_DUMP_BIO 105
#define CONF_F_NCONF_DUMP_FP 106
#define CONF_F_NCONF_GET_NUMBER 107
#define CONF_F_NCONF_GET_NUMBER_E 112
#define CONF_F_NCONF_GET_SECTION 108
#define CONF_F_NCONF_GET_STRING 109
#define CONF_F_NCONF_LOAD 113
#define CONF_F_NCONF_LOAD_BIO 110
#define CONF_F_NCONF_LOAD_FP 114
#define CONF_F_NCONF_NEW 111
#define CONF_F_STR_COPY 101

/* Reason codes. */
#define CONF_R_ERROR_LOADING_DSO 110
#define CONF_R_MISSING_CLOSE_SQUARE_BRACKET 100
#define CONF_R_MISSING_EQUAL_SIGN 101
#define CONF_R_MISSING_FINISH_FUNCTION 111
#define CONF_R_MISSING_INIT_FUNCTION 112
#define CONF_R_MODULE_INITIALIZATION_ERROR 109
#define CONF_R_NO_CLOSE_BRACE 102
#define CONF_R_NO_CONF 105
#define CONF_R_NO_CONF_OR_ENVIRONMENT_VARIABLE 106
#define CONF_R_NO_SECTION 107
#define CONF_R_NO_SUCH_FILE 114
#define CONF_R_NO_VALUE 108
#define CONF_R_UNABLE_TO_CREATE_NEW_SECTION 103
#define CONF_R_UNKNOWN_MODULE_NAME 113
#define CONF_R_VARIABLE_HAS_NO_VALUE 104

#ifdef __cplusplus
}
#endif
#endif
